Bluetooth: ISO: ensure no dangling hcon references in iso_conn
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: ensure no dangling hcon references in iso_conn After iso_conn_del(), ISO sockets should not dereference the hcon any more. Currently, clearing iso_conn::hcon relies on iso_conn_del() releasing the last reference to the iso_conn. Simplify this by explicitly clearing conn->hcon in iso_conn_del(), to avoid more complex reasoning on races about who holds the last reference.
CVE-2026-80721
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-80721
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b",
"lessThan": "e941799c31f68e67ce0976efb38a79101f921b64",
"versionType": "git"
},
{
"status": "affected",
"version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b",
"lessThan": "cdce8af9291d8a1f8916c271de029bf558d9e8ec",
"versionType": "git"
},
{
"status": "affected",
"version": "dc26097bdb864a0d5955b9a25e43376ffc1af99b",
"lessThan": "aa9f7cb2bd3a2be998ceb739fc9a2f986eba43eb",
"versionType": "git"
},
{
"status": "affected",
"version": "f53e7489273dc2bb307bf50f319b3762d45534f0",
"versionType": "git"
},
{
"status": "affected",
"version": "a58d0f5dac322e16cc75334d000666512341bde5",
"versionType": "git"
},
{
"status": "affected",
"version": "6.11.11",
"lessThan": "6.12",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.12.2",
"lessThan": "6.13",
"versionType": "semver"
}
],
"programFiles": [
"net/bluetooth/iso.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/bluetooth/iso.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80721
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #34368 · Revision 1
- Added to Heist Feed
- Publisher date